Hopefully, nothing.
Sadly, probably, it'll mean a breakneck scramble to hit reverse while travelling at warp, instead of a slow steady pressure on the brakes. Money will fly out in new and different directions, bills will be rewritten to sound more palatable but hit the streets with just as much cost.
I'll be curious to see how the passage of the FY11 federal budget fares, if they'll stall out in sep/oct in ancitipation or hurry up at the last minute to stick the bill to the new guys.